Small owl restricted to oak woodlands in canyons and foothills in Mexico, barely reaching into southeast Arizona and southwest New Mexico. Finely patterned in gray, black, and white. Very similar to Western Screech-Owl; best distinguished by voice. Two song types: one a relatively even series of five to eight "toot" notes; the other sounds like morse code: "toot-toot, toot, toot, toot-toot, toot." Also note paler bill than Western Screech-Owl.